/*
 * Copyright 2017-2020 Alfresco Software, Ltd.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.activiti.cloud.services.query.rest;

import com.fasterxml.jackson.annotation.JsonView;
import org.activiti.cloud.alfresco.data.domain.AlfrescoPagedModelAssembler;
import org.activiti.cloud.api.task.model.QueryCloudTask;
import org.activiti.cloud.services.query.app.repository.TaskRepository;
import org.activiti.cloud.services.query.model.JsonViews;
import org.activiti.cloud.services.query.model.QTaskEntity;
import org.activiti.cloud.services.query.model.TaskEntity;
import org.activiti.cloud.services.query.rest.assembler.TaskRepresentationModelAssembler;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.domain.Page;
import org.springframework.data.domain.Pageable;
import org.springframework.hateoas.EntityModel;
import org.springframework.hateoas.MediaTypes;
import org.springframework.hateoas.PagedModel;
import org.springframework.http.MediaType;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RestController;

@RestController
@RequestMapping(
    value = "/admin/v1/process-instances/{processInstanceId}",
    produces = { MediaTypes.HAL_JSON_VALUE, MediaType.APPLICATION_JSON_VALUE }
)
public class ProcessInstanceTasksAdminController {

    private TaskRepresentationModelAssembler taskRepresentationModelAssembler;

    private AlfrescoPagedModelAssembler<TaskEntity> pagedCollectionModelAssembler;

    private final TaskRepository taskRepository;

    @Autowired
    public ProcessInstanceTasksAdminController(
        TaskRepository taskRepository,
        TaskRepresentationModelAssembler taskRepresentationModelAssembler,
        AlfrescoPagedModelAssembler<TaskEntity> pagedCollectionModelAssembler
    ) {
        this.taskRepository = taskRepository;
        this.taskRepresentationModelAssembler = taskRepresentationModelAssembler;
        this.pagedCollectionModelAssembler = pagedCollectionModelAssembler;
    }

    @JsonView(JsonViews.General.class)
    @RequestMapping(value = "/tasks", method = RequestMethod.GET)
    public PagedModel<EntityModel<QueryCloudTask>> getTasksAdmin(
        @PathVariable String processInstanceId,
        Pageable pageable
    ) {
        Page<TaskEntity> page = taskRepository.findAll(
            QTaskEntity.taskEntity.processInstanceId.eq(processInstanceId),
            pageable
        );
        return pagedCollectionModelAssembler.toModel(pageable, page, taskRepresentationModelAssembler);
    }
}
